Pollution

  1. Climate

    Fireworks brighten the sky but dampen the view

    Fireworks and other pyrotechnics severely reduce visibility during celebrations such as New Year’s Eve and Guy Fawkes Day, researchers report.

    By Thomas Sumner
  2. Climate

    Ice rafts traveling farther and faster across the Arctic Ocean

    Climate change may be causing Arctic sea ice to travel farther and faster than it did 15 years ago, taking pollutants and other material along for the ride.

    By Thomas Sumner
  3. Environment

    Year in review: BPA alternatives aren’t benign

    Evidence is accumulating that at least one popular alternative to bisphenol A can enter the body and trigger developmental and physiological changes.

    By Janet Raloff
  4. Climate

    195 nations approve historic climate accord

    The Paris climate talks end with delegates from 195 nations releasing a hard-fought agreement to curb climate change and limit warming to 2 degrees Celsius.